My little evinrude stutters.

**skeetbum** · 05-30-2021, 07:53 PM

Low rpm, in or out of gear. If it’s in gear when it coughs and the rpm is low enough, it will stall. I am leaning towards a carb adjust being off a little but I haven’t tried anything yet. ‘74 Evinrude 15 hp. She runs out good at a blistering 14mph wot. Good enough for my needs for now so I’d like to get it smoothed out, and thanks for any help in advance.

**DockShootinJack** · 05-30-2021, 08:03 PM

That thing is as old as I am. I don't stutter, I do cough occasionally, but I do an awful lot of grumbling.

May need a good carb cleaning
If it has a pulse fuel pump it could be a little bit weak

**flintcreek** · 05-30-2021, 08:48 PM

I am thinking with the sputtering and coughing the timing is a little off. Is the timing cam follower adjustable or fixed linkage? It has been some time since I have worked on an older OMC. I am guessing the 74 is still points. Somewhere right in there is when they went electronic ignition. If it is not electronic ignition I would say points and timing. Post up some pictures of under the hood of the carb and timing cam follower and I might be of some help. I love the old 60's and 70's Evinrudes and Johnson's. Points and cond, carb kit, 2 new coils and plugs and wires used to cost me less than $100 for parts and in a afternoon I could usually make a motor run if it had compression add in a water pump and it was good to go and you should not have to worry.

**skeetbum** · 05-31-2021, 03:49 AM

Thanks Flint, I’ll try to get pics this afternoon. Motor is in pretty good shape and runs good, the cough is the only issue I have.

**wannabe fisherman** · 05-31-2021, 06:08 AM

Have you tried Vicks NyQuil ??

**DockShootinJack** · 05-31-2021, 01:27 PM

Originally Posted by wannabe fisherman

Have you tried Vicks NyQuil ??

It isn't the same as what they had in the 70's. They took all the good stuff out.

**TheGrandPoohBah** · 05-31-2021, 04:19 PM

Was it a sudden onset, or start out small and gradually got worse?

**wannabe fisherman** · 06-01-2021, 05:47 AM

Originally Posted by DockShootinJack

It isn't the same as what they had in the 70's. They took all the good stuff out.

**yobuck** · 06-01-2021, 08:00 AM

I have a 72 6 hp Fisherman model Evinrude i bought new.
It still purrs like a kitten, i use it on a 68 12’ Grumman i bought from a friend the same year.
Its just a bit too tipsy for my liking where im sharing the water with those big Gators however. lol

**skeetbum** · 06-01-2021, 11:05 AM

Let me explain why I think it’s carb. It will idle fine for 3 to 5 seconds and then cough once, the rpm falling. I’m wondering if it isn’t a bit lean and when it runs out of fuel it coughs and while still spinning the fuel is gathered enough to continue to run, and the process repeats.

Yo, I had one of those 15 or so years ago and sold it when I bought my stick steer boat. It was always good to me, and this one will also be good once I get it squared away.

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